/*
 *    Copyright (c) 2006 ThoughtWorks, Inc.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.thoughtworks.turtlemock.constraint;

public class ArrayEqConstraint implements Constraint {
    private final Constraint[] constrains;

    public ArrayEqConstraint(Object[] expectedArray) {
        constrains = new Constraint[expectedArray.length];
        for (int i = 0; i < expectedArray.length; i++) {
            constrains[i] = new EqConstraint(expectedArray[i]);
        }
    }

    public CheckResult check(Object param) {
        Object[] paramArray = (Object[]) param;
        boolean hasSameArrayLen = constrains.length == paramArray.length;
        CheckResult result = new CheckResult(msg(paramArray), hasSameArrayLen);
        if (hasSameArrayLen) {
            for (int i = 0; i < paramArray.length; i++) {
                result = result.append(constrains[i].check(paramArray[i]));
            }
        }
        return result;
    }

    private String msg(Object[] paramArray) {
        return "param size expected " + constrains.length + ", actual was " + paramArray.length;
    }
}
